/* ===== R2DAC — Modernized Design System ===== */

:root {
  /* Brand palette */
  --navy:        #0B1A3B;
  --navy-light:  #122044;
  --navy-mid:    #1A2A54;
  --blue:        #1D4ED8;
  --blue-light:  #2563EB;
  --blue-glow:   rgba(37,99,235,.15);
  --cyan:        #38bdf8;
  --white:       #E8ECF4;
  --grey:        #94a3b8;
  --grey-dark:   #64748B;
  --dark:        #060D1F;
  --card:        rgba(18,32,68,.65);
  --card-border: rgba(37,99,235,.10);
  --card-hover:  rgba(37,99,235,.20);
  --max:         1140px;
  --radius:      .75rem;
  --radius-lg:   1.25rem;
  --transition:  .3s cubic-bezier(.4,0,.2,1);
}

/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--white);
  background:var(--dark);
  line-height:1.65;
  overflow-x:hidden;
  min-height:100vh;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-light);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--cyan)}
ul{list-style:none}

/* ===== Utilities ===== */
.container{width:min(var(--max),calc(100% - 2.5rem));margin-inline:auto}
.kicker{
  text-transform:uppercase;letter-spacing:.12em;font-size:.75rem;font-weight:700;
  color:var(--cyan);margin-bottom:.5rem;display:inline-block;
}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ===== Scroll-reveal ===== */
.reveal{opacity:1;transform:none;transition:opacity .7s ease,transform .7s ease}
.reveal.will-animate{opacity:0;transform:translateY(28px)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,10,26,.88);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(37,99,235,.08);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:.75rem 0;gap:1rem;
}
.brand{
  display:inline-flex;align-items:center;gap:.65rem;
  text-decoration:none;color:var(--white);font-weight:700;font-size:1.1rem;
}
.brand img{height:2.2rem;width:auto;border-radius:.35rem}
.nav-links{display:flex;gap:.15rem;align-items:center}
.nav-links a{
  color:var(--grey);font-size:.88rem;font-weight:500;padding:.45rem .85rem;
  border-radius:999px;border:1px solid transparent;transition:all var(--transition);
}
.nav-links a:hover{color:var(--white);background:var(--blue-glow);border-color:rgba(37,99,235,.25)}
.nav-links a.active{color:var(--white);background:rgba(37,99,235,.12);border-color:rgba(37,99,235,.3)}

/* Mobile hamburger */
.nav-toggle{
  display:none;background:none;border:none;color:var(--white);cursor:pointer;
  width:2.4rem;height:2.4rem;position:relative;
}
.nav-toggle span{
  display:block;width:1.35rem;height:2px;background:var(--white);
  position:absolute;left:50%;transform:translateX(-50%);transition:all var(--transition);
}
.nav-toggle span:nth-child(1){top:.7rem}
.nav-toggle span:nth-child(2){top:1.15rem}
.nav-toggle span:nth-child(3){top:1.6rem}
.nav-toggle.open span:nth-child(1){top:1.15rem;transform:translateX(-50%) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){top:1.15rem;transform:translateX(-50%) rotate(-45deg)}

/* ===== Hero ===== */
.hero{
  position:relative;padding:6rem 0 4rem;
  background:linear-gradient(165deg,var(--navy) 0%,var(--dark) 55%,rgba(29,78,216,.12) 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-40%;right:-20%;width:700px;height:700px;
  background:radial-gradient(circle,rgba(29,78,216,.18) 0%,transparent 65%);
  pointer-events:none;
}
.hero-grid{
  display:grid;gap:3rem;grid-template-columns:1.3fr 1fr;align-items:center;
  position:relative;z-index:1;
}
.hero h1{
  font-size:clamp(2.1rem,4.8vw,3.4rem);line-height:1.15;
  font-weight:800;letter-spacing:-.02em;margin-bottom:1rem;
}
.hero h1 .accent{color:var(--blue-light)}
.subtitle{color:var(--grey);font-size:1.08rem;margin-bottom:1.5rem;max-width:38rem}
.hero-visual{
  display:flex;justify-content:center;align-items:center;
}
.hero-visual img{
  max-height:280px;filter:drop-shadow(0 0 40px rgba(37,99,235,.25));
}

/* ===== Page Hero (subpages) ===== */
.page-hero{
  padding:4.5rem 0 3rem;
  background:linear-gradient(170deg,var(--navy) 0%,var(--navy-light) 100%);
  border-bottom:3px solid var(--blue);
}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;letter-spacing:-.02em;margin-bottom:.75rem}
.page-hero .subtitle{color:var(--grey);max-width:48rem}

/* ===== Buttons ===== */
.button{
  display:inline-flex;align-items:center;gap:.4rem;
  font-weight:600;font-size:.9rem;border:none;border-radius:var(--radius);
  padding:.72rem 1.35rem;cursor:pointer;transition:all var(--transition);
  text-decoration:none;
}
.button.primary{
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-light) 100%);
  color:#fff;box-shadow:0 4px 20px rgba(29,78,216,.35);
}
.button.primary:hover{box-shadow:0 6px 28px rgba(29,78,216,.5);transform:translateY(-1px)}
.button.ghost{
  background:transparent;color:var(--white);
  border:1px solid var(--grey-dark);
}
.button.ghost:hover{border-color:var(--blue-light);color:var(--blue-light)}
.cta-row{display:flex;flex-wrap:wrap;gap:.75rem}

/* ===== Cards ===== */
.card{
  background:var(--card);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  padding:1.75rem;
  transition:all var(--transition);
}
.card:hover{border-color:var(--card-hover);transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.card h2,.card h3{margin-bottom:.6rem}
.card p{color:var(--grey);font-size:.92rem}
.card a.card-link{
  display:inline-flex;align-items:center;gap:.3rem;
  margin-top:1rem;font-weight:600;font-size:.88rem;color:var(--blue-light);
}
.card a.card-link:hover{color:var(--cyan)}
.card a.card-link::after{content:'→';transition:transform var(--transition)}
.card a.card-link:hover::after{transform:translateX(4px)}

/* Card with image */
.card-img{
  width:100%;height:200px;object-fit:cover;border-radius:var(--radius);margin-bottom:1.25rem;
  background:var(--navy-mid);
}

/* ===== Grids ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.25rem}

/* ===== Sections ===== */
.section{margin-bottom:2.5rem}
main.page-content{padding:3rem 0 4rem}
h2{font-size:1.5rem;font-weight:700;letter-spacing:-.01em}
h3{font-size:1.15rem;font-weight:600}

/* ===== Feature list ===== */
.feature-list{display:flex;flex-direction:column;gap:.8rem}
.feature-list li{
  display:flex;align-items:flex-start;gap:.7rem;
  font-size:.93rem;color:var(--grey);
}
.feature-list li::before{
  content:'';flex-shrink:0;width:6px;height:6px;margin-top:.55rem;
  border-radius:50%;background:var(--blue-light);
}
.feature-list li strong{color:var(--white)}

/* ===== Contact form ===== */
.contact-section{max-width:640px}
label{display:block;margin:.8rem 0 .25rem;font-weight:600;font-size:.88rem;color:var(--grey)}
input,textarea{
  width:100%;padding:.7rem .9rem;border-radius:var(--radius);
  border:1px solid rgba(37,99,235,.15);
  background:rgba(10,15,46,.6);color:var(--white);
  font-family:inherit;font-size:.9rem;transition:all var(--transition);
}
input:focus,textarea:focus{
  outline:none;border-color:var(--blue-light);
  box-shadow:0 0 0 3px rgba(37,99,235,.15);
}
textarea{resize:vertical}
#formStatus{min-height:1.2rem;font-size:.88rem;color:var(--grey);margin-top:.5rem}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid rgba(37,99,235,.08);
  padding:2.5rem 0;margin-top:2rem;
}
.footer-inner{
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:1rem;
}
.footer-brand{display:flex;align-items:center;gap:.5rem}
.footer-brand img{height:1.6rem;border-radius:.25rem}
.footer-brand span{font-weight:600;font-size:.9rem}
.footer-links{display:flex;gap:1.5rem;font-size:.85rem}
.footer-links a{color:var(--grey)}
.footer-links a:hover{color:var(--white)}
.footer-copy{width:100%;text-align:center;color:var(--grey-dark);font-size:.78rem;margin-top:1rem}

/* ===== CTA Banner ===== */
.cta-banner{
  background:linear-gradient(135deg,var(--navy-mid) 0%,rgba(29,78,216,.2) 100%);
  border:1px solid rgba(37,99,235,.15);
  border-radius:var(--radius-lg);padding:2.5rem;text-align:center;
}
.cta-banner h2{margin-bottom:.5rem}
.cta-banner p{color:var(--grey);margin-bottom:1.25rem}

/* ===== 404 ===== */
.error-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center}
.error-page h1{font-size:5rem;font-weight:800;color:var(--blue)}
.error-page p{color:var(--grey);margin:1rem 0}

/* ===== Responsive ===== */
@media(max-width:900px){
  .hero-grid,.grid-2,.grid-3{grid-template-columns:1fr}
  .hero{padding:4rem 0 3rem}
  .hero-visual{order:-1}
  .hero-visual img{max-height:180px}
  .page-hero{padding:3rem 0 2rem}
}
@media(max-width:640px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;flex-direction:column;position:absolute;
    top:100%;left:0;right:0;
    background:rgba(6,10,26,.96);backdrop-filter:blur(14px);
    padding:1rem;border-bottom:1px solid rgba(37,99,235,.1);
    gap:0;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.75rem 1rem;border-radius:var(--radius);width:100%}
  .hero h1{font-size:1.9rem}
  .card{padding:1.25rem}
}

/* ===== Accessibility ===== */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
a.sr-only:focus{
  position:fixed;top:.5rem;left:.5rem;z-index:100;
  width:auto;height:auto;clip:auto;overflow:visible;
  background:var(--blue);color:#fff;padding:.75rem 1.25rem;
  border-radius:var(--radius);font-weight:600;font-size:.9rem;
  box-shadow:0 4px 20px rgba(0,0,0,.4);
}
:focus-visible{
  outline:2px solid var(--blue-light);
  outline-offset:2px;
  border-radius:2px;
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none}
}